nanog mailing list archives
Re: BGP testbed tools
From: Łukasz Bromirski <lukasz () bromirski net>
Date: Wed, 13 Jan 2010 00:13:38 +0100
On 2010-01-12 21:27, Ben Jencks wrote:
This is obviously a rookie question, but I haven't found anything by searching. I'm looking to set up a small testbed to simulate our internal network topology, and I want to have a realistic BGP table from the fake "upstream" routers. Ideally what I'd like to do is dump the BGP table from our production routers, strip the immediate neighbor AS, and load the table into Quagga or OpenBGPD to advertise. I'm running into two problems: how do you dump BGP tables in a machine-parseable format from IOS, and how do you make the route server advertise the routes as they were in the original table, including the full AS-path, communities, etc? If Quagga/OpenBGPD aren't the right tools, I'm happy to use something else.
Use libbgpdump from ris.ripe.net to get raw data from http://data.ris.ripe.net/ (you're looking for newest bview file), and dump them using bgpdump to something easily to parse. Then using bgpsimple (from googlecode) simulate a peer with specific number of prefixes advertised - up to the limit of the contents of the file. You can spoof next-hop, AS, etc. As for the attribute manipulation, fire up a couple of VMWare/VirtualBox/vimage instances with quagga/openbgpd to accept the prefixes from bgpsimple and mangle them in some manner. Here you go. -- "Everything will be okay in the end. | Łukasz Bromirski If it's not okay, it's not the end. | http://lukasz.bromirski.net
Current thread:
- BGP testbed tools Ben Jencks (Jan 12)
- Re: BGP testbed tools Łukasz Bromirski (Jan 12)
- Re: BGP testbed tools Ben Jencks (Jan 13)
- Re: BGP testbed tools Jason Lewis (Jan 12)
- RE: BGP testbed tools Ivan Pepelnjak (Jan 12)
- RE: BGP testbed tools Stefan Fouant (Jan 12)
- Re: BGP testbed tools Łukasz Bromirski (Jan 12)